Piston-rod packing.



PATENTBD MAR, 2

G. P. KLINB.

PISTON Ron PACKING.

l Q n A M my UNITED STATES r'PATE-Nr OFFICE.

` GEORGE P." KLINE, OF ROCK ISLAND, ILLINOIS.

L y Pfs'roN-Roo PACKING.

SPECIFICATION formmgpart of Letters Patent No. 723,681, dated March '24, 1903..

Application filed April 14, 1902. SerialNo. 102,888. (No modrelJ To all whom it may concern..-

Be itkuown that I, GEORGE P. KLINE, acitifzen of the United States, residing at Rock Island,-iu the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Piston Rod Packing; and-Ido herebydeclare the following to be a full, clear, and exact description vof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in metallic packing for the piston-rods of steamengines or mechanisms of a like character.

The object of this invention is to provide a packing of the character above described which'shall be'cons'tructed of several dis- 'tnct sections, all-'being combined and correlated in such manner that a steamstight packing entirely surrounding the piston-rod is formed.

It also has in contemplation the provision Iof spring means for retaining the sectional packing securely in place, whereby each piece is capable of adjustment relative to the vaforesaid piston-rod, this 'compensating for V the wear ofthe parts.

Furth-er, it is intended in thepresent inl j gland. VVarious means have been tried and vention to so arrange the portions or sections of packing that ready access may be had to the same and so that the liability of the scctions becoming disengaged or broken through l :any sudden strain or j ar upon the same isfgreatly lessened.

To the accomplishment and attainment of the above-recited objects the invention con'- fsists in surrounding the portion of a piston'- rod which Works in the gland of the steamlcylinder with curved (approximately semiycircular) sections of packing retained in proper position by spring-pressure, thus prof viding a steam-tight joint at the portion of the gland-cylinder wherein the piston-rod en'- ters.

It also consists in the peculiar construction, combination, and arrangement of parts, as will be more fully hereinafter set forth and claimed.

Fora full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the `following description.

'Ihe'invention is susceptible tovariousV changes in the form/proportions, and minor details -of construction Without departing from the principle or'sacrificiug any ofthe advantages thereof, and a full disclosure and adaptation thereof is shown in the accompanying drawings, in which-A Figure l is a transverse vertical sectional view of the piston-rod and its surrounding packing-retaining means, taken on the line :1c of Fig.v 2. Fig. 2 is a side elevation of a piston provided with my improved packing, the gland wherein piston works being shown in section. Fig. 3 is a View of one of the sections-of packing. Fig. 4 is a modification illustrating another means of securing the packing-section in place.

Referring now to the drawings in detail and in particular to Fig. 2, the numeral l des'- ignates a gland or supplemental cylinder con.- nected with the main cylinder of the engine. Passing through this gland and working therein is an ordinary pistou-rod 2, which en.- ters the aforesaid gland at 3. Now it is the desire in structures of the character of steamengines and the like to maintain an absolutely steam-tight joint at the point of entrance of the piston-rod into the aforesaid employed to accomplish this result, but in most instances there has been more or less leakage-,g but to prevent such leakage of steam I have devised a structurewhich I will now proceed to describe in detail.

Positioned on the piston-rod in such manner that it will abut against the interior of the wall 4 of the gland is a metallic ring or collar 5. Around the piston-rod and abutting against such collar I have placed my packing, which consists of a number of metallic sections 6, of substantially semicircular form, as will be seen by reference to Fig. 3.

These sections are cut away, as at 7-and S, in

these sections have been so arranged on the ICO- -the same.

piston-rod similar semicircular sections, as 12 and 13, are placed around the rod immediately contiguous to the first packing. Each section of packing is formed with a lug or projection 14, which is so placed as to'prevent the joints of one section of packing from coming into alinement with the joints of another section. As the piston works in the cylinder the tendency of the packing portions would be to slip around the rod; but by the arrangement or provision of this shoulder the head or entrance 15 of the section would abut or strike against this lug and prevent further movement. As each section is provided with such a head and the contigu ous sections with a lng, it will readily be seen that the sections will be preserved in the -proper correlative position at all times. To hold the semicircular sections formingthe complete encircling packing portion in place, I have devised the following means: A band 16, formed of wire doubled into'substantially theshape shown in Fig. 5 and adapted tolconform to the surface of the semicircular pack.

ing, has its ends 17 17 inserted in oritices or ports 18, bored in the section end, while the doubled-end portion 19 is adapted to rest upon the outside of the adjacent semicircular sections of packing, as will be seen by reference to Fig. 2. The same relative arrangement is preserved in securing the dierent sections together, and the entire encircling.r packing is held securely in place on the rod by means ot' a spring-collar or encircling band, which holds the retaining-pins 16 sef curely in place and counteracts the normal tendency of the end 19 of the pin to ily outward. By this arrangement an extremely tight packing is formed, while at the same time the piston-rod is free to slide through In order at all times to cause the collar 5 and the metallic packing just described to abut against the wall 4, I provide a second ring or collar 20, between which collars 5 and 2O the 'packing is placed, and secured to a shoulder 21, prelferably formed on collar 20,

is one end of a coiled tension-spring 22, theother end of which may be secured in any suitable manner. (Not shown.) It will be seen that the spring 22 presses the entire structure, consisting of the two collars 5 and 20 and the intermediate packing-sections, at alltimes irmly against the walli ofthe gland, thus obviating the possibility of leakage.

In Fig. 5 a modification of the means for securing the sections together is illustrated, steel bands being employed instead of the doubled-wire pin.

While I have shown my improvements applied to the part of the rod in the gland or supplemental cylinder, it will of course be understood that they are applicable to the main cylinder. I

The securing springs and pins may be of any suitable metal, bronze and steel being usuallyemployed.

*massi The many advantages resulting from a construction'of this character are so obvious that it is unnecessary to dwellv upon the same in detail. i

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A packing of the class described cornprising metallic sections, each section having a socket near one end, such sections being adapted when positioned onrthe rod to completely encircle the same, and spring-pins for securing the sections together, one end of the pin being adapted to be inserted in the socket of one section, while its other end rests upon Vthe surface of the adjoining section, substantially as set forth.

2. A packing of the class described comprising metallic sections, each section having a socket near onev end, such sections being adapted when positioned on the rod to completely encircle the same, and spring-pins for securing the sections together, one end of the pin being adapted to be inserted in the socket of one section, while its other end rests upon the surface of the adjoining section, and means for binding the entire structure firmly together, substantially as set forth.

A3. In adevice ot the class described, a packing comprising metallic sections jointed and surrounding the piston-rod, means for retaining the packing-sections in vtheir working positions, a second packing similar to the first-mentioned packing arranged contiguous thereto on the rod, and a lug formed on one of the metallic sections of one packing, adapted to contact with a portion of the contiguous packing for preventing the movement ot' the encircling packing-sections relative to each other, substantially as set forth.

4. In a device of the class described, the combination of a cylinder, a piston-rod working therein, and means for providing a steamtight joint at the point of entrance of the y piston in the cylinder, such means comprising a collar mounted on the rod, and abutting against the interior wall of the cylinder, a second collar provided with a shoulder, and metallic packing-sections jointed to surround the rod interposed between the two aforesaid collars, substantially as described.

5. In a device of the class described, the combination of a cylinder, a piston-rod working therein, and means for providing a steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mounted on the rod, and abutting against the interior wall of the cylinder, a second collar provided with a shoulder, metallic packing-sections jointed to surround the rod interposed between the two aforesaid collars, and means for pressing the collars and the interposed packing firmly against the interior end wall of the cylinder, substantially as described.

6. In a device of the class described, the combination of a cylinder, a piston-rod work- IOO l'IO

vaaes ing therein, and 'means for providing a steamtight joint at the point ot' entrance of the piston in the cylinder, such means comprising a collar mounted on the rod and abutting against the interior wall of the cylinder, a second collar provided with a shoulder, metallic packing-sections jointed to surround the rod interposed between the two aforesaid collars, and spring-tensioned means for pressing the collars and the interposed packing firmly against the interior end wall of the cylinder, substantially as described.

7. In a device of the class described, the combination of a cylinder, a piston-rod working therein, and means for providinga steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mounted on the rod and abutting against the interior Wall of the cylinder, a second collar provided with a shoulder,me tallic packing-sections jointed to surround the rod interposed between the two aforesaid collars, and spring-tensioned means secured to the shoulder on the second ring for pressing the collars and the interposed packing rlnly against the interiorend Wall of the cylinder against the movement of the piston, substantially as described.

8. In a device of the class described, the combination of a cylinder, a piston-rod working therein, and means for providing a steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mou'nted on the rod and abutting against the interior wall of the cylinder, a second collar provided with a shoulder, metallic packing-sections jointed to surround the rod interposed between the two aforesaid collars, and a spring coiled about the rod and having one end secured to the shoulder of the second collar for pressing the collars and the interposed packing firmly against the interior end wall of the cylinder against the movement of the piston, substantially as described.

9. In a. device of the class described, the

-combination of a cylinder, a piston-rod working therein, and means for providing a steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mounted on the rod and abutting against the interior wall of the cylinder, a second collar provided with a shoulder, a packing for piston-rods comprising metallic sections approximately semicircular in conformation, adapted when positioned on said rod to completelyencircle the same,and means for uniting the parts, substantially as described.

lO. In a device of the class described, the combination of a cylinder, a piston-rod Working therein, and means for providing a steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mounted on the rod and abutting against the interior Wall of the cylinder, a second collar provided with a shoulder, a packing for piston-rods comprising metallic sections approximately semicircular in conformation adapted when positioned on said rod to completely encircle the same, means for uniting the parts, such means comprising a spring having one end mounted on a socket in one of said sections, the other end resting upon the surface of the adjoining section, and an encircling band for securely binding the parts together, substantially as described.

l1. In a device of the class described, the combination of a cylinder, a piston-rod working therein, and means for providing a steamtight joint at the point of entrance of the piston in the cylinder, such means comprising a collar mounted on the rod and abutting against the interior Wall of the cylinder, a second collar provided with a shoulder, a packing for piston-'rods comprising metallic sections approximately semicircular in conformation, adapted when positioned on the rod to cooperate and completely encircle the same, means fortirmly uniting the twosections, a second encircling. sectional packing contiguous to the first-mentioned packing, and means for preventing the movement of the encircling packing portions relative to each other, substantially as described.

y In testimony whereof I hereunto affix my signature in presence of two witnesses.

GEORGE P. KLINE.

Witnesses:

WILLIAM L. LUDoLPH, JAMES B. ECKHART. 

